US3062789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinyl alkyl ether polymers and copolymers
Assignee: Goodyear Tire and Rubber Co
•
Filing: 1961-01-26
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Granted: 1962-11-06
•
Expires: 1981-01-26
Abstract
No abstract record available.
Inventors
- 👤 Lal Joginder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:44
CPC Classifications
C; C08; C08F; C08F16/00; C08F16/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
IN THE POLYMERIZATION OF VINYL ALKYL ETHERS TO SOLID POLYMERS, THE IMPROVEMENT WHICH COMPRISES CARRYING OUT THE POLYMERIZATION UNDER SUBSTANTIALLY ANHYDROUS CONDITIONS IN THE PRESENCE OF A SUFFICIENT AMOUNT OF ALUMINUM HEXAHYDROSULFATE TO INDUCE POLYMERIZATION AND IN THE PRESENCE OF CARBON DISULFIDE.
Claim 2
Dependent Claim
42 words
IN THE POLYMERIZATION OF VINYL ALKYL ETHERS TO SOLID POLYMERS, THE IMPROVEMENT WHICH COMPRISES CARRYING OUT THE POLYMERIZATION UNDER SUBSTANTIALLY ANHYDROUS CONDITIONS IN THE PRESENCE OF A SUFFICIENT AMOUNT OF ALUMINUM HEXAHYDROSULFATE TO INDUCE POLYMERIZATION AND IN THE PRESENCE OF CARBON DISULFIDE.
References Cited (Backward Citations)
US2549921A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-05 | 1966-05-07 | 1966-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-05 | 1970-05-07 | 1970-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-05 | 1974-05-07 | 1974-11-06 | $7700.00 | Window Closed / Lapsed |